Polydicyclopentadiene (PDCPD) is an "environmentally friendly material" widely used in chemical piping, sanitary ware,kayaks,automotive interior and exterior parts, hoods, bumpers, medical equipment, etc. The density of 1.03g/cm³ realizes the goal of lightweighting, and the single size can be completed in 4m of product. It is characterized by high design freedom, high impact resistance and good rigidity, and is resistant to low temperatures up to minus 40 degrees Celsius, making it suitable for use in cold regions of the northern hemisphere. It can also well reflect the design intent; excellent mounting structure is easy to assemble and ensure high assembly quality; at the same time, the mold development cost of large products is greatly reduced than the traditional injection molding process, which is more suitable for small and medium-sized mass production, such as new energy and so on.